Lake Sunapee algal bloom

May 30, 2018
Landsat 8 as a Tool for Monitoring Algal Blooms

When algae blanket a lake’s surface, loss of sunlight and—eventually—oxygen, smothers aquatic life.

water quality map

Jan 26, 2018
UNESCO Launches a Pioneering Tool to Monitor Water Quality

Using data from Landsat and Sentinel-2, UNESCO is providing freshwater quality information at the global scale.

map of study area

Sep 7, 2017
Finding Baltimore’s Mosquito Hotspots with Help from Landsat

High levels of residential abandonment and unchecked vegetation growth in low-income neighborhoods are strong indicators of mosquito prevalence. Higher income neighborhoods are also susceptible to mosquito-borne disease due to the presence of […]

algal bloom in Lake Erie 2015

May 15, 2017
How Landsat Data Led to a Breakthrough for Lake Erie Toxic Algal Blooms

With the growing frequency and magnitude of toxic freshwater algal blooms becoming an increasingly worrisome public health concern, Carnegie scientists Jeff Ho and Anna Michalak, along with colleagues, have made new advances in understanding the […]

Yamouk River Valley

Dec 16, 2016
Managing Water in Conflict-Torn Regions

Understanding the relationship between land use and river flows in the Yarmouk basin.

ducks

Jul 19, 2016
Land Cover Matters: An Avian Flu Researcher Talks Landsat

We recently spoke with veterinary epidemiologist Todd Kelman from the University of Davis, California about his avian flu research. Todd has incorporated Landsat data into his research and we wanted to know more.

Preparing an optical profiler

Apr 25, 2016
A Real-Life Bay Watch: NASA Helps Monitor LA Coastline

When a Los Angeles water treatment plant had to discharge treated water closer to shore than usual in the fall of 2015 due to repair work, NASA satellite observations helped scientists from the City of Los Angeles and local research institutions […]

Banaue rice terraces

Jan 11, 2016
Future Grains

When global food prices spiked dramatically in late 2007 and into 2008, the costs of many basic dietary staples doubled or even tripled around the world, sparking protests and riots. Panicked governments stopped exporting food, aggravating the crisis.

Jan 5, 2016
Mosquito Meets MODIS & Landsat: South Dakota Fights West Nile Virus

Source: NASA Video @ YouTube   Jan 5, 2016 • South Dakota is the U.S. hotspot for West Nile disease. Scientists and public health officials there developed a way to use environmental data from NASA satellites to forecast the risk of […]

installing water gages in Kenya

Dec 18, 2015
Monitoring Small Surface Water Bodies in Africa

Naga Manohar Velpuri, works with the USGS Famine Early Warning Systems Network (FEWS NET). The project has recently initiated a large-scale project to monitor surface water bodies in the pastoral regions of Africa using multi-source satellite […]

houses in nepal

Dec 17, 2015
Detecting Landslides in Nepal with Landsat

Justin Roberts-Pierel from the Joint Center for Earth Systems Technology, uses Landsat 8 to detect landslides in the Himalayas. He provided information about his studies at #AGU15. We talked with him about his work.

earthquake aftermath

Dec 17, 2015
How the 2010 Haitian Earthquake & Resulting Human Migration Affected Landslide Occurrences

At #AGU15 Yurika Kato, a Geosciences graduate student at the University of Missouri-Kansas City, presented his research about how the 2010 Haitian earthquake and resulting human migration affected landslide occurrences in the Port-au-Prince […]

Bagre Lake

Dec 16, 2015
Tracking Microbiological Health Hazards in Burkina Faso

Elodie Robert from the French National Center for Scientific Research presented preliminary results of her research at #AGU15 that aims to track microbiological heath hazards based on surface water turbidity in West Africa.

Alyssa Whitcraft

Oct 29, 2015
GEOGLAM & the Landsat Connection—Earthzine Takes a Look

There is a global effort afoot to fight hunger and reduce poverty by allowing anyone with an internet connection to see agricultural projections.

Gombe ecosystem

Sep 29, 2015
Landsat Images Advance Watershed Restoration in Western Tanzania

For those who live along its shores, Lake Tanganyika in east Africa is the backbone of local transportation and serves as an essential source of household water and protein. Every night, fishers lure nocturnal, sardine-like fish called dagaa […]

Turkana women gathering water

Jan 26, 2015
Water Mapping Technology Rebuilds Lives in Arid Regions

Turkana County in northwest Kenya has been reeling from several years of crippling drought. As a consequence, the nomadic peoples in the region have suffered. Livestock such as goats and cattle, the sole source of income for these pastoralists, […]

Ceccato in Tanzania

Oct 1, 2014
Field Notes: Climate, Health and the Maasai

Earlier this year, I attended a workshop in Arusha, Tanzania to train research scientists from South Africa, Ivory Coast, Mauritania, Botswana, Kenya and Tanzania on how to use products derived from NASA satellites to monitor climate and […]

girl in a park

Apr 23, 2014
Research Shows Green Space Keeps You From Feeling Blue

If you start feeling better as spring begins pushing up its tender shoots, you might be living proof of a trend discovered in data from the Survey of the Health of Wisconsin: The more green space in the neighborhood, the happier people reported […]

Marx's Study area

Oct 30, 2013
Using Landsat to Detect Human Rights Violations

Over 2500 villages were destroyed during six years of conflict in Darfur between 2002 and 2008. Dr. Andrew Marx, a 2013 fellow at the Center for the Prevention of Genocide at the U.S. Holocaust Memorial Museum, has found that this type of […]

UNESCO photo of water discovered in Kenya

Sep 12, 2013
Vast Water Reserves Found in Drought-Prone Northern Kenya

Large underground water reserves have been found in Turkana, one of Kenya’s driest and poorest regions. The discoveries were made by the natural resources exploration firm, Radar Technologies International, during the course of a survey of […]

Leonard Lopate

Aug 8, 2013
Environmental Monitoring with Public Domain Satellites

WNYC’s Leonard Lopate talks with SkyTruth president, John Amos, about using public domain satellite imagery, such as Landsat, to monitor the environment. SkyTruth uses all types of satellite imagery to monitor environmental changes and […]

Burning fields in Indonesia

Jul 30, 2013
Using Landsat 8 to Locate Fires in Indonesia

In June, air pollution over Singapore and Malaysia spiked as forests in neighboring Sumatra (Indonesia) burned. Using NASA’s daily fire alerts and official national maps, the fires were located in the vicinity of oil palm and acacia tree […]

May 9, 2013
Landsat Images Provide the Gold Standard for New Earth Applications

May 9, 2013 • Images from Landsat satellites provided free to the public by the Department of the Interior’s U.S. Geological Survey were the starting points for “a new breakthrough” reported today by Time and announced on the Official […]

Jan 22, 2013
What is the Economic Value of Satellite Imagery?

Jan 22, 2013 • Does remote-sensing information, such as that from Landsat and similar Earth-observing satellites, provide economic benefits to society, and can this value be estimated? Using satellite data for northeastern Iowa, U.S. […]

Cladophora on shore of N. Manitou Island

Sep 26, 2012
Using Landsat to Map Cladophora in the Great Lakes

Sep 26, 2012 • Cladophora, a nuisance, native green algae that grows attached to solid substrate in all of the Laurentian Great Lakes, has expanded its range partially due to invasive quagga and zebra mussels. During significant storm […]

Shemya Island

Aug 29, 2012
Analyzing Landsat to Mitigate Bird/Aircraft Collisions

Aug 29, 2012 • The presence of birds near an aircraft runway is a constant concern. Although deadly crashes are rare, a bird strike to the windshield can cause visibility issues for pilots, and strikes to jet engines can cause engine […]

girl eating corn

Feb 1, 2012
It Takes a Satellite To Feed the World

Source: Charles L. Walthall, USDA Agricultural Research Service Forum It’s ironic that just when Earth-monitoring satellites are needed more than ever to address the food and freshwater demands of a burgeoning global human population, we […]

Fafen Upper Valley in Ethiopia

Jan 25, 2012
Combating drought in the Horn of Africa

Jan 25, 2012 • UNESCO began mapping groundwater this January in the drought-stricken Horn of Africa, in order to bring the population a sustainable water supply. Drought has caused the region’s worst famine in 60 years, with 12 […]

geographic reference map

Jul 28, 2011
Landsat-Based Maps Aid German Relief Work in East Africa

Jul 28, 2011 • Eastern Africa is in the grip of the worst drought it has seen in 60 years and the region is facing severe famine. In Somalia alone, it is estimated that 3.7 million people have been affected by the drought. The uncertain […]

World Water Day logo

Mar 22, 2011
Thirst for Knowledge: NASA Eyes World’s Water

Mar 22, 2011 • As the world moves toward adding a few more billion people in the coming decades, many people who keep an eye on the horizon find themselves worried about water. Drinking water, water for irrigation, water for industry. […]

rice paddies

Nov 18, 2009
How Wetlands and Rice Paddies Affect the Spread of Bird Flu

Nov 18, 2009 • In the mid-1990s, highly pathogenic avian influenza (bird flu) emerged in southern China. Severe outbreaks in the winter of 2005-2006 spread the virus, designated H5N1, across Asia, Europe, and Africa, killing hundreds of […]

Aug 10, 2008
Landsat Key in New UNEP Atlas of Africa’s Environmental Change

Glacial Retreat to Rapid Urbanization Chronicled in Landmark Satellite Report to Africa’s Environment Ministers Source: United Nations Environment Programme Africa’s rapidly changing environmental landscape, from the disappearance of […]

NASA Data Helps Pinpoint Impacted Populations in Disaster Aftermath

Jun 12, 2008
NASA Data Helps Pinpoint Impacted Populations in Disaster Aftermath

Contact: Gretchen Cook-Anderson, NASA/GSFC When two catastrophic natural disasters struck within days of each other in May 2008, disaster relief, humanitarian aid, and health officials, as well as members of the news media tapped into a unique […]

Pilot Jim Demers (left) and researchers John Lekki (center) and Norman Prokop (right)

Aug 28, 2007
Sensor Synergy: Great Lakes Algae Monitoring

Aug 28, 2007 • A rare bird has been flying over the Great Lakes recently, and it isn’t migrating or searching for prey. This hawkeyed species is a Learjet aircraft outfitted with an advanced imaging system. Engineers at NASA’s […]

Apr 12, 2007
U.S. Uses Landsat Satellite Data To Fight Hunger, Poverty

Remote sensing is a critical tool for agriculture, land use worldwide Source: Cheryl Pellerin, America.gov, U.S. Department of State Over the 35 years that U.S. Landsat Earth-observation satellites have collected images of the planet from space, […]

cattle feedlots

Apr 6, 2006
Collaboration for Cancer Research

Contributor: Susan Maxwell Human health scientists have associated cancer, neurological disorders, and adverse reproductive outcomes with exposure to agricultural chemicals. Lack of information on historical environmental exposure to these […]

Assaf Anyamba and Major Michael Sardelis investigate possible locations of dambos in Yemen where mosquitoes may be carrying Rift Valley Fever.

Apr 6, 2006
Mapping Rift Valley Fever Outbreak Risk Areas

Contributors: Assaf Anyamba with Kenneth J. Linthicum, Compton J. Tucker, Robert Mahoney, and Randall During the period of August to September 2000, the Yemen Ministry of Agriculture and Irrigation, and the Ministry of Health reported the […]